How to sort a range

[Edwin van Leeuwen via Digitalmars-d-learn]

On Wednesday, 9 March 2016 at 13:04:31 UTC, rcorre wrote:
> On Wednesday, 9 March 2016 at 12:31:18 UTC, Edwin van Leeuwen 
> wrote:
>> On Wednesday, 9 March 2016 at 12:21:55 UTC, rcorre wrote:
>>>> If you are looking for a lazy uniq that works on non sorted 
>>>> ranges, I implemented one not to long ago:
>>>> http://github.com/BlackEdder/ggplotd/blob/master/source/ggplotd/range.d
>>>
>>> That sounds like the kind of thing I was looking for. I'll 
>>> take a look, thanks!
>>
>> Well that one does allocate, because it keeps track of which 
>> values have already been seen.
>
> Yup, just noticed that >.<

Of course it only allocates when the actual result is used, so 
this will probably be more efficient if you only need a small 
number of unique results or need to keep the unsorted range 
around/intact. Sorting without allocating and then using uniq 
should indeed be more efficient in other cases.

Did you try different SwapStrategy values in your original?